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Transparent powder coating for aluminum template, preparation method thereof and application thereof

A technology of powder coating and aluminum formwork, which is applied in the direction of powder coating, epoxy resin coating, coating, etc., and can solve the problems that affect the popularization and application of aluminum formwork, poor wear resistance, abrasion, etc.

Inactive Publication Date: 2020-04-07
忠旺(辽阳)铝模板制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In view of this, the present invention aims to solve the problems of low strength and poor wear resistance of the existing transparent powder coatings for aluminum templates, which cause the powder coatings to be prone to coating cracking, wear and tear, and even fall off, which affects the popularization and application of aluminum templates. , providing a transparent powder coating for aluminum formwork and its preparation method and application

Method used

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Experimental program
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Embodiment

[0027] A preparation method of transparent powder coating for aluminum formwork, comprising the following steps:

[0028] A. 93 parts of polyester resin, 7 parts of curing agent, 1 part of leveling agent, 0.4 parts of benzoin, 0.2 parts of thixotropic agent, 0.2 parts of polyethylene wax, 0.06 parts of curing accelerator, modified nano-SiO 2 0.5 parts, modified nano Al 2 o 3 Put 1 portion of raw materials together into the mixer for pre-mixing, and the pre-mixing time is usually 3 to 4 minutes;

[0029] B. The pre-mixed raw materials are melted and extruded through a twin-screw extruder, pressed into tablets, crushed, and the melting temperature of the raw materials is 90-110°C;

[0030] C. Finely pulverize the crushed materials;

[0031] D. Pass the finely crushed material through a 200-mesh sieve and classify it into a powder coating.

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Abstract

The invention belongs to the technical field of aluminum alloy template materials and relates to a transparent powder coating for an aluminum template, a preparation method thereof and application thereof. The transparent powder coating comprises the following raw material: by weight, 90-95 parts of polyester resin, 6-8 parts of curing agent, 1-1.5 parts of leveling agent, 0.3 to 0.5 part of benzoin, 0.2 to 0.3 part of a thixotropic agent, 0.2-0.3 part of polyethylene wax, 0.05 to 0.08 part of a curing accelerator, 0.5-0.8 parts of modified nano SiO2, and 1-1.2 parts of modified nano Al2O3. According to the invention, the problems that an existing transparent powder coating for the aluminum template is low in strength and poor in abrasion resistance, so that a powder coating is prone to cracking, abrasion and even falling-off, and the application and popularization of the aluminum template are affected are solved.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy template materials, and relates to a transparent powder coating for aluminum templates, a preparation method and application thereof. Background technique [0002] Early building templates mostly used wooden materials. Due to the disadvantages of high water absorption and low strength of wooden materials, steel materials were mostly used later. However, the defects of steel materials are also obvious, such as easy to rust and heavy, which is not conducive to operation. In recent years, with the reduction of the cost of aluminum alloy materials, aluminum alloy material templates have appeared (which have been used for more than 50 years in developed countries such as Europe and the United States). The advantages and characteristics of aluminum formwork system in building construction are as follows: [0003] (1) The construction period is short: the normal construction of a set of formwork ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D5/03C09D7/62
CPCC09D163/10C09D5/033C08K2201/011C08K2003/2227C08K13/06C08K3/36C08K3/22
Inventor 周洪涛杨学均张思尧
Owner 忠旺(辽阳)铝模板制造有限公司
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